ASTM D5573 - 99(2019) - Standard Practice for Classifying Failure Modes in Fiber-Reinforced-Plastic (FRP) Joints

ASTM D5573 - 99(2019)

Standard Practice for Classifying Failure Modes in Fiber-Reinforced-Plastic (FRP) Joints

Status : Current   Published : June 2019



1.1 This practice covers the method of classifying, identifying, and characterizing the failure modes in adhesively bonded fiber-reinforced-plastic (FRP) joints. The FRP used in developing this practice consists of glass fibers in a thermoset-polyester-resin matrix, commonly referred to as sheet-molding compound, or SMC.

1.2 One objective of this practice is to present comprehensive definitions of possible failure modes to serve as a guide for contracts, drawings, product specifications, and product performance.

Note 1:  Figures 2 through 11 referred to in the practice are contained in the ASTM adjunct, Color Photographs of Failure Modes. 2

Fig. 2—Side-by Side Comparison of Failure Modes

Fig. 3—Adhesive Failure

Fig. 4—Cohesive Failure

Fig. 5—Thin-Layer Cohesive Failure

Fig. 6—Fiber-Tear Failure

Fig. 7—Light-Fiber-Tear Failure

Fig. 8—Stock-Break Failure

Fig. 9—Mixed Failure—40 % Fiber-Tear Failure, 60 % Light-Fiber-Tear Fiber

Fig. 10—Mixed Failure—32 % Adhesive Failure, 68 % Fiber-Tear Failure

Fig. 11—Mixed Failure—20 % Adhesive Failure, 60 % Light-Fiber-Tear Failure, 20 % Fiber-Tear Failure

Note 2:  This practice may be used to describe the failure modes generated from testing, using procedures such as Test Methods D3163, D3164, D3165, D3807, D5041, D5868, and SAE J1525.

1.3 The values stated in SI units are to be regarded as the standard.

1.4  This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5  This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Standard NumberASTM D5573 - 99(2019)
TitleStandard Practice for Classifying Failure Modes in Fiber-Reinforced-Plastic (FRP) Joints
Publication Date01 June 2019
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors adhesive bond, failure mode, fiber-reinforced plastic, FRP, practice
File Size85 KB

 Your basket
Your basket is empty

Multi-user access to over 3,500 medical device standards, regulations, expert commentaries and other documents


Access, view and download standards with multiple user access, across multiple sites with BSOL

Develop a PAS

Develop a fast-track standardization document in 9-12 months

Tracked Changes

Understand the changes made to a standard with our new Tracked Changes version